Pontiac 2008 G5 Owner's Manual page 136

Operation
To change the current mode, select one of the following:
H
(Vent): The air is directed though the instrument
panel outlets.
)
(Bi-Level): The air is split between the instrument
panel outlets and the floor outlets. Cooler air is directed to
the upper outlets and warmer air to the floor outlets.
6
(Floor): Most of the air is directed through the floor
outlets with some air directed to the windshield and
side windows.
The left knob can also be used to select defog or
defrost mode. Information on defogging and defrosting
can be found later in this section.
9
(Fan): Turn the center knob clockwise or
counterclockwise to increase or decrease the fan speed.
In any setting other than off, the fan will run continuously
with the ignition on. The fan must be turned on to run
the air conditioning compressor.
9
(Off): To turn the fan off, turn the knob all the way
counterclockwise to the off position.
Temperature Control: Turn the right knob clockwise or
counterclockwise to increase or decrease the
temperature inside the vehicle.
3-20
h
(Recirculation): Press this button to prevent
outside air and odors from entering the vehicle or to help
heat or cool the air inside the vehicle more quickly. An
indicator light above the button will come on in this mode.
The air conditioning compressor also comes on. This
mode is not available for floor, defog and defrost modes.
When the recirculation button is pressed, the recirculate
indicator light will flash five times and outside air will be
delivered. Operation in this mode during periods of high
humidity and cool outside temperatures may result in
increased window fogging. If window fogging is
experienced, select the defrost mode.
Outside Air: This mode allows outside air to circulate
through the vehicle. This mode is automatically
active if recirculate is not selected. There is no button
for outside air.
#
(Air Conditioning): If your vehicle has air
conditioning, press this button to turn the air conditioning
system on or off. When this button is pressed, an
indicator light above the button comes on to show that
the air conditioning is activated.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for the vehicle to cool down. It also helps the
system to operate more efficiently.